Home / 1,018,966.92-1,529,137.71-419,914.80

Finding the Fourth Proportional to 1,018,966.92, 1,529,137.71 and 419,914.80

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Solution

The fourth proportional to 1,018,966.92, 1,529,137.71 and 419,914.80 is: 630,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,966.92 : 1,529,137.71 = 419,914.80 : x
  2. Step 2: Convert to fraction form
    1,018,966.92/1,529,137.71 = 419,914.80/x
  3. Step 3: Cross multiply
    1,018,966.92x = 1,529,137.71 × 419,914.80
  4. Step 4: Simplify right side
    1,018,966.92x = 642,107,555,667.11
  5. Step 5: Solve for x
    x = 642,107,555,667.11/1,018,966.92
  6. Step 6: Final answer
    x = 630,155.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.